US20030138690A1 - Battery pack - Google Patents
Battery pack Download PDFInfo
- Publication number
- US20030138690A1 US20030138690A1 US10/257,997 US25799702A US2003138690A1 US 20030138690 A1 US20030138690 A1 US 20030138690A1 US 25799702 A US25799702 A US 25799702A US 2003138690 A1 US2003138690 A1 US 2003138690A1
- Authority
- US
- United States
- Prior art keywords
- battery pack
- battery
- lan
- communication
- network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a battery pack having the function of enabling communication over a network.
- Battery packs for use as power sources in carrying portable personal computers have a battery charge displaying function and a battery protecting function.
- Power management systems such as a smart battery system are constituted in which data including the battery voltage and the battery charge are output to PC bodies through communication buses (such as SMBus) and the PC bodies control the battery packs.
- PC bodies through communication buses (such as SMBus) and the PC bodies control the battery packs.
- portable PCs loaded with such battery packs are connected to the LAN so that they can acquire and update necessary information from a management computer for performing maintenance.
- the management computer can acquire the information on the battery packs from the portable PCs.
- the information on the battery packs includes data such as the dates of manufacture, serial numbers, battery capacities, and battery voltages. From the data acquired, the management computer identifies replacement times, available models for capacity enhancement, etc.
- the information on the battery packs is, however, in a format solely for communication between the battery packs and the portable PCs. Thus, it must be converted into data formats recognizable on the network by the portable PCs, and the management computer cannot acquire the information on the battery packs unless the portable PCs are in operation.
- the information acquisition intended for maintenance and the like is performed at nighttime so as not to interfere with any business operation that uses computers including the portable PCs. At nighttime, the portable PCs are often powered OFF, which precludes the information acquisition.
- a battery pack includes: a rechargeable battery; battery management means for managing a charge/discharge status of the rechargeable battery; storing means for storing firmware and required data; and communication means having a unique address for identifying the battery pack, and the communication means using a predetermined network protocol.
- the battery pack contains such communication means as a LAN interface that has a unique address of TCP/IP or the like and can establish direct connection to a network. Consequently, a management computer on the network can retrieve the information on the battery pack even if the equipment loaded with the battery pack, such as a portable PC, is not in operation. The management computer connected to the network can perform maintenance of the battery pack as needed.
- the communication means in the foregoing configuration may have a communication facility over a network that is constructed by means of power-line carrier communication using power lines.
- the power lines can be used as communication lines without connecting other lines for the communication connection, since a charger for charging the rechargeable battery of the battery pack or an AC adapter of the computer loaded with the battery pack is in connection with the interior power lines.
- FIG. 1 is a block diagram showing the configuration of a battery pack according to an embodiment of the present invention and a PC loaded with the same.
- the present embodiment shows a battery pack as a battery power source thereof.
- a PC body 1 of the portable PC is configured such that it can run on direct current power supplied from a loaded battery pack 2 or direct current power supplied from an AC adapter 10 selectively.
- a rechargeable battery 3 of the battery pack 2 is configured to be charged by the power supplied from the AC adapter 10 .
- the PC body 1 In predetermined places such as in the office, the PC body 1 is used with the AC adapter 10 connected to commercial power, and is connected to the LAN as a client. It can also be used in any places as moved from the predetermined places, taking advantage of the portability of having the battery pack 2 .
- the PC body 1 and the battery pack 2 are provided with TCP/IP network interfaces (communication means) 11 and 12 to which unique IP addresses are given, respectively.
- the PC body 1 and the battery pack 2 perform sending/receiving of data therebetween as to power source management, and are connected to a LAN connection cable 13 .
- the battery pack 2 includes: the rechargeable battery 3 which is a plurality of lithium-ion rechargeable batteries combined to obtain a required voltage and capacity; a protection circuit 6 which protects this rechargeable battery 3 from overcharge, overdischarge, overcurrent, and so on; the network interface 12 ; a microcomputer 7 which detects the operating status of the rechargeable battery 3 such as the remaining capacity, and controls communication through the network interface 12 ; and a memory (storing means) 8 which contains firmware and inherent data including the manufacturer, a serial number, and charging conditions.
- the battery pack 2 When the battery pack 2 is thus provided with the network interface 12 for LAN connection, it follows that the battery pack 2 has its own communication facility and is capable of communication connection to computers connected on the network even if the PC body 1 is not in operation. That is, a management computer arranged on the LAN, in charge of maintenance, can acquire data on the operating statuses of the battery packs 2 mounted on a number of portable PCs connected to the LAN even when the respective PC bodies 1 are not in operation. Consequently, it becomes possible to carry out the data acquisition for maintenance at nighttime when the individual PCs are powered OFF, without interfering with business operations.
- TCP/IP is the standard protocol on the Internet, and various services over the Internet are premised on TCP/IP, which is hence an indispensable network protocol even on LANs. This means no particular specification on the connecting computer, so that an arbitrary computer on the network can acquire the data on the battery pack 2 .
- this IP address is granted at the stage of manufacture by the manufacturer of the battery pack, and can thus be treated as a serial number. In the event of defects in a given manufacturing lot, it is possible to find out the IP addresses of the corresponding battery packs over the network and to transmit necessary information.
- the network is constructed with LAN connection cables 13 . It is possible, however, to construct a LAN without using LAN connection cables 13 , but by means of power-line carrier communication which utilizes interior power lines of commercial power as the channels for signal transmission. Computers receive their operating power from interior power lines via line connectors, or outlets, of the interior power lines. Hence, using the line cords through which the operating power is input from the outlets, a power-line-carrier-based LAN from PC bodies 1 can be constructed through the line cords with the interior power lines as the signal transmission channels.
- connection of the PC body 1 to the interior power lines is established by the AC adapter 10 via an outlet.
- the AC adapter 10 has a transformer etc. that can interrupt the signal transmission channel, and thus is incapable of signal transmission.
- This problem can be solved by the use of an AC adapter 10 that is provided with a signal transmission channel. That is, the AC adapter 10 bypasses its components that interrupt the signal transmission channel, such as the transformer, to connect the LAN terminals of the PC body 1 and the battery pack 2 to the power lines.
- the battery pack of the present invention includes the communication means which has a unique address and can establish direct connection to a network.
- the information on the battery pack is thus retrieved over the network even if the equipment loaded with that battery pack is not in operation, so that a management computer connected to the network performs maintenance of the battery pack as needed.
Abstract
To make a battery pack (2) capable of connection over a communication network for the sake of maintenance of the battery pack (2). The battery pack (2) is provided with a network interface (12) given a unique IP address, which is connected to a LAN along with a network interface (11) of a PC body (1). Even if the PC body (1) is suspended, the battery pack (2) can be accessed over the LAN. A computer for maintenance, arranged on the LAN, can thus access the battery back (2) to acquire the operating status of a rechargeable battery (3) and data stored in a memory (8), such as a serial number, thereby performing maintenance.
Description
- The present invention relates to a battery pack having the function of enabling communication over a network.
- Battery packs for use as power sources in carrying portable personal computers (hereinafter, referred to as portable PCs) have a battery charge displaying function and a battery protecting function. Power management systems such as a smart battery system are constituted in which data including the battery voltage and the battery charge are output to PC bodies through communication buses (such as SMBus) and the PC bodies control the battery packs. In offices etc., portable PCs loaded with such battery packs are connected to the LAN so that they can acquire and update necessary information from a management computer for performing maintenance.
- Since the information on the battery packs is transmitted to the PC bodies through the communication buses, the management computer can acquire the information on the battery packs from the portable PCs. The information on the battery packs includes data such as the dates of manufacture, serial numbers, battery capacities, and battery voltages. From the data acquired, the management computer identifies replacement times, available models for capacity enhancement, etc.
- The information on the battery packs is, however, in a format solely for communication between the battery packs and the portable PCs. Thus, it must be converted into data formats recognizable on the network by the portable PCs, and the management computer cannot acquire the information on the battery packs unless the portable PCs are in operation. In addition, the information acquisition intended for maintenance and the like is performed at nighttime so as not to interfere with any business operation that uses computers including the portable PCs. At nighttime, the portable PCs are often powered OFF, which precludes the information acquisition.
- It is an object of the present invention to provide a battery pack which has a unique address and network communication means so that the battery pack can establish connection with the network by itself.
- To achieve the above-mentioned object, a battery pack according to the present invention includes: a rechargeable battery; battery management means for managing a charge/discharge status of the rechargeable battery; storing means for storing firmware and required data; and communication means having a unique address for identifying the battery pack, and the communication means using a predetermined network protocol.
- According to the configuration described above, the battery pack contains such communication means as a LAN interface that has a unique address of TCP/IP or the like and can establish direct connection to a network. Consequently, a management computer on the network can retrieve the information on the battery pack even if the equipment loaded with the battery pack, such as a portable PC, is not in operation. The management computer connected to the network can perform maintenance of the battery pack as needed.
- The communication means in the foregoing configuration may have a communication facility over a network that is constructed by means of power-line carrier communication using power lines. In the configuration capable of communication connection to the network for the power-line carrier communication, the power lines can be used as communication lines without connecting other lines for the communication connection, since a charger for charging the rechargeable battery of the battery pack or an AC adapter of the computer loaded with the battery pack is in connection with the interior power lines.
- FIG. 1 is a block diagram showing the configuration of a battery pack according to an embodiment of the present invention and a PC loaded with the same.
- Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawing for the sake of understanding of the invention. Incidentally, the embodiment shown below is merely an example of embodiment of the present invention, and by no means intended to limit the technical scope of the invention.
- Taking a portable personal computer (portable PC) for use in an office where LAN is built, as an example, the present embodiment shows a battery pack as a battery power source thereof.
- As shown in FIG. 1, a
PC body 1 of the portable PC is configured such that it can run on direct current power supplied from a loadedbattery pack 2 or direct current power supplied from anAC adapter 10 selectively. Arechargeable battery 3 of thebattery pack 2 is configured to be charged by the power supplied from theAC adapter 10. In predetermined places such as in the office, thePC body 1 is used with theAC adapter 10 connected to commercial power, and is connected to the LAN as a client. It can also be used in any places as moved from the predetermined places, taking advantage of the portability of having thebattery pack 2. - For the connection to the LAN, the
PC body 1 and thebattery pack 2 are provided with TCP/IP network interfaces (communication means) 11 and 12 to which unique IP addresses are given, respectively. ThePC body 1 and thebattery pack 2 perform sending/receiving of data therebetween as to power source management, and are connected to aLAN connection cable 13. - The
battery pack 2 includes: therechargeable battery 3 which is a plurality of lithium-ion rechargeable batteries combined to obtain a required voltage and capacity; aprotection circuit 6 which protects thisrechargeable battery 3 from overcharge, overdischarge, overcurrent, and so on; the network interface 12; amicrocomputer 7 which detects the operating status of therechargeable battery 3 such as the remaining capacity, and controls communication through the network interface 12; and a memory (storing means) 8 which contains firmware and inherent data including the manufacturer, a serial number, and charging conditions. - When the
battery pack 2 is provided with the network interface 12 given a unique IP address as mentioned above, it is impossible for the address space available by current IPv4 to assign an address to each of thebattery packs 2 on respective LAN-connected portable PCs. Nevertheless, the application of IPv6 having an extended 128-bit address space allowsbattery packs 2 having unique IP addresses. - When the
battery pack 2 is thus provided with the network interface 12 for LAN connection, it follows that thebattery pack 2 has its own communication facility and is capable of communication connection to computers connected on the network even if thePC body 1 is not in operation. That is, a management computer arranged on the LAN, in charge of maintenance, can acquire data on the operating statuses of thebattery packs 2 mounted on a number of portable PCs connected to the LAN even when therespective PC bodies 1 are not in operation. Consequently, it becomes possible to carry out the data acquisition for maintenance at nighttime when the individual PCs are powered OFF, without interfering with business operations. - Besides, TCP/IP is the standard protocol on the Internet, and various services over the Internet are premised on TCP/IP, which is hence an indispensable network protocol even on LANs. This means no particular specification on the connecting computer, so that an arbitrary computer on the network can acquire the data on the
battery pack 2. - Moreover, this IP address is granted at the stage of manufacture by the manufacturer of the battery pack, and can thus be treated as a serial number. In the event of defects in a given manufacturing lot, it is possible to find out the IP addresses of the corresponding battery packs over the network and to transmit necessary information.
- In many of LAN connections, as shown in the foregoing configuration, the network is constructed with
LAN connection cables 13. It is possible, however, to construct a LAN without usingLAN connection cables 13, but by means of power-line carrier communication which utilizes interior power lines of commercial power as the channels for signal transmission. Computers receive their operating power from interior power lines via line connectors, or outlets, of the interior power lines. Hence, using the line cords through which the operating power is input from the outlets, a power-line-carrier-based LAN fromPC bodies 1 can be constructed through the line cords with the interior power lines as the signal transmission channels. - In the foregoing configuration, however, the connection of the
PC body 1 to the interior power lines is established by theAC adapter 10 via an outlet. TheAC adapter 10 has a transformer etc. that can interrupt the signal transmission channel, and thus is incapable of signal transmission. - This problem can be solved by the use of an
AC adapter 10 that is provided with a signal transmission channel. That is, theAC adapter 10 bypasses its components that interrupt the signal transmission channel, such as the transformer, to connect the LAN terminals of thePC body 1 and thebattery pack 2 to the power lines. - Industrial Applicability
- As has been described above, the battery pack of the present invention includes the communication means which has a unique address and can establish direct connection to a network. The information on the battery pack is thus retrieved over the network even if the equipment loaded with that battery pack is not in operation, so that a management computer connected to the network performs maintenance of the battery pack as needed.
Claims (2)
1. A battery pack comprising:
a rechargeable battery (3);
battery management means (7) for managing a charge/discharge status of said rechargeable battery (3);
storing means (8) for storing firmware and required data; and
communication means (12) having a unique address for identifying the battery pack, said communication means (12) using a predetermined network protocol.
2. The battery pack according to claim 1 , wherein said communication means (12) has a communication facility over a network constructed by means of power-line carrier communication.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001044001 | 2001-02-20 | ||
JP2001-044001 | 2001-02-20 | ||
PCT/JP2002/000992 WO2002067347A1 (en) | 2001-02-20 | 2002-02-06 | Battery pack |
Publications (2)
Publication Number | Publication Date |
---|---|
US20030138690A1 true US20030138690A1 (en) | 2003-07-24 |
US6969566B2 US6969566B2 (en) | 2005-11-29 |
Family
ID=18906069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/257,997 Expired - Fee Related US6969566B2 (en) | 2001-02-20 | 2002-02-06 | Battery pack |
Country Status (6)
Country | Link |
---|---|
US (1) | US6969566B2 (en) |
EP (1) | EP1284508B1 (en) |
JP (1) | JP4520695B2 (en) |
CN (1) | CN100352081C (en) |
DE (1) | DE60235860D1 (en) |
WO (1) | WO2002067347A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060290326A1 (en) * | 2005-06-24 | 2006-12-28 | Microsoft Corporation | Protocols for reporting power status over multiple buses |
US20120297211A1 (en) * | 2011-05-18 | 2012-11-22 | Samsung Sdi Co., Ltd. | Battery pack management system |
US20140059260A1 (en) * | 2012-08-23 | 2014-02-27 | Lg Chem, Ltd. | Battery pack monitoring system and method for assigning a binary id to a microprocessor in the battery pack monitoring system |
US9660464B2 (en) | 2013-03-29 | 2017-05-23 | Panasonic Intellectual Property Management Co., Ltd. | Battery pack, electrical hardware, and communication control method |
US9772666B1 (en) * | 2012-09-07 | 2017-09-26 | Google Inc. | Multi-level battery management |
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JP4614922B2 (en) * | 2006-06-19 | 2011-01-19 | 敦俊 井上 | Power supply device using battery pack |
US20090295517A1 (en) * | 2008-05-29 | 2009-12-03 | Northern Lights Semiconductor Corp. | Expandable Energy Storage for Portable Electronic Devices |
JP2011018560A (en) * | 2009-07-09 | 2011-01-27 | Mitsumi Electric Co Ltd | Mobile device, battery pack, notification method, and notification program |
KR101156342B1 (en) | 2009-08-03 | 2012-06-13 | 삼성에스디아이 주식회사 | Battery id setting system and driving method thereof |
JP5085626B2 (en) * | 2009-10-08 | 2012-11-28 | レノボ・シンガポール・プライベート・リミテッド | Battery pack, firmware update method thereof, and battery pack system |
JP5581063B2 (en) * | 2010-01-14 | 2014-08-27 | 株式会社Nttドコモ | Battery management system and battery management method |
US9851412B2 (en) * | 2010-11-09 | 2017-12-26 | International Business Machines Corporation | Analyzing and controlling performance in a composite battery module |
CN103336486B (en) * | 2012-12-19 | 2015-11-18 | 惠州市亿能电子有限公司 | A kind of battery modules address distribution method of battery energy storage system |
DE102013208834A1 (en) * | 2013-05-14 | 2014-11-20 | Robert Bosch Gmbh | Data transmission with an electric machine |
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US6456948B1 (en) * | 1999-04-21 | 2002-09-24 | Samsung Sdi Co., Ltd. | Method of generating data for use in monitoring and controlling charge and discharge status of secondary battery |
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-
2002
- 2002-02-06 DE DE60235860T patent/DE60235860D1/en not_active Expired - Lifetime
- 2002-02-06 EP EP02711352A patent/EP1284508B1/en not_active Expired - Lifetime
- 2002-02-06 CN CNB028003659A patent/CN100352081C/en not_active Expired - Fee Related
- 2002-02-06 WO PCT/JP2002/000992 patent/WO2002067347A1/en active Application Filing
- 2002-02-06 US US10/257,997 patent/US6969566B2/en not_active Expired - Fee Related
- 2002-02-06 JP JP2002566570A patent/JP4520695B2/en not_active Expired - Fee Related
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US5994878A (en) * | 1997-09-30 | 1999-11-30 | Chartec Laboratories A/S | Method and apparatus for charging a rechargeable battery |
US6137265A (en) * | 1999-01-11 | 2000-10-24 | Dell Usa, L.P. | Adaptive fast charging of lithium-ion batteries |
US6456948B1 (en) * | 1999-04-21 | 2002-09-24 | Samsung Sdi Co., Ltd. | Method of generating data for use in monitoring and controlling charge and discharge status of secondary battery |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060290326A1 (en) * | 2005-06-24 | 2006-12-28 | Microsoft Corporation | Protocols for reporting power status over multiple buses |
US20120246493A1 (en) * | 2005-06-24 | 2012-09-27 | Microsoft Corporation | Protocols for reporting power status over multiple buses |
US8441233B2 (en) * | 2005-06-24 | 2013-05-14 | Microsoft Corporation | Protocols for reporting power status over multiple buses |
US20130297841A1 (en) * | 2005-06-24 | 2013-11-07 | Microsoft Corporation | Protocols for reporting power status over multiple buses |
US8884587B2 (en) * | 2005-06-24 | 2014-11-11 | Microsoft Corporation | Protocols for reporting power status over multiple buses |
US20120297211A1 (en) * | 2011-05-18 | 2012-11-22 | Samsung Sdi Co., Ltd. | Battery pack management system |
US9176561B2 (en) * | 2011-05-18 | 2015-11-03 | Samsung Sdi Co., Ltd. | Smart battery pack system capable of providing power during errors in its firmware data |
US20140059260A1 (en) * | 2012-08-23 | 2014-02-27 | Lg Chem, Ltd. | Battery pack monitoring system and method for assigning a binary id to a microprocessor in the battery pack monitoring system |
US8904049B2 (en) * | 2012-08-23 | 2014-12-02 | Lg Chem, Ltd. | Battery pack monitoring system and method for assigning a binary ID to a microprocessor in the battery pack monitoring system |
US9772666B1 (en) * | 2012-09-07 | 2017-09-26 | Google Inc. | Multi-level battery management |
US9660464B2 (en) | 2013-03-29 | 2017-05-23 | Panasonic Intellectual Property Management Co., Ltd. | Battery pack, electrical hardware, and communication control method |
Also Published As
Publication number | Publication date |
---|---|
EP1284508B1 (en) | 2010-04-07 |
CN1457516A (en) | 2003-11-19 |
EP1284508A4 (en) | 2009-06-24 |
US6969566B2 (en) | 2005-11-29 |
DE60235860D1 (en) | 2010-05-20 |
JPWO2002067347A1 (en) | 2004-06-24 |
CN100352081C (en) | 2007-11-28 |
JP4520695B2 (en) | 2010-08-11 |
EP1284508A1 (en) | 2003-02-19 |
WO2002067347A1 (en) | 2002-08-29 |
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Legal Events
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AS | Assignment |
Owner name: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MATSUI, TAKATOSHI;REEL/FRAME:013968/0355 Effective date: 20020913 |
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Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
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